1) Contributions: Tax free in /tax free out â An investor can take out the exact amount of his or her Roth IRA contributions at any time, for any reason without having to pay any tax or penalty â with one big caveat.
Freebase(0.00 / 0 votes)Rate this definition: Stereopsis is the impression of depth that is perceived when a scene is viewed with both eyes by someone with normal binocular vision. Binocular viewing of a scene creates two slightly different images of the scene in the two eyes due to the eyes' different positions on the head.
Syn. stereoscopic vision; third-degree fusion. See stereoscopic visual acuity; anaglyph; angle of stereopsis; cortical column; retinal disparity; depth perception; leaf room; stereo-blindness; random-dot stereogram; stereoscopy; Howard-Dolman test; three needle test; two-dimensional test. (ster'Ä-Å-skop'ik vizh'Å­n).